What is 16/5 in simplest form?

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

I’m which figure is point g an orthocenter

How do the definitions, properties, and postulates you've learned about line segments, parallel lines, and angles to define the shapes of polygons